| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3MHFETP | |||
| Repository | sid.inpe.br/mtc-m21b/2016/10.03.19.11 | |||
| Last Update | 2017:01.16.15.31.30 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2016/10.03.19.11.03 | |||
| Metadata Last Update | 2021:03.04.02.31.11 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | PenaPPSBOFRA:2016:ExInPh | |||
| Title | Experimental investigation of photoconductivity in n-type PbTe quantum wells  | |||
| Year | 2016 | |||
| Access Date | 2024, May 22 | |||
| Secondary Type | PRE CN | |||
| Number of Files | 1 | |||
| Size | 3380 KiB | |||
| 2. Context | ||||
| Author | 1 Pena, Fernando Silva 2 Pirralho, Marília Páscoa 3 Peres, Marcelos Lima 4 Soares, Demetrio Werner 5 Braga, Paula Oliveira 6 Okasaki, Anderson Kenji 7 Fornari, Celso Israel 8 Rappl, Paulo Henrique de Oliveira 9 Abramof, Eduardo | |||
| Resume Identifier | 1 2 3 4 5 6 7 8 8JMKD3MGP5W/3C9JJ37 9 8JMKD3MGP5W/3C9JGUH | |||
| Group | 1 2 3 4 5 6 CMS-ETES-SPG-INPE-MCTI-GOV-BR 7 CMS-ETES-SPG-INPE-MCTI-GOV-BR 8 LAS-CTE-INPE-MCTI-GOV-BR 9 LAS-CTE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Universidade Federal de Itajubá (UNIFEI) 2 Universidade Federal de Itajubá (UNIFEI) 3 Universidade Federal de Itajubá (UNIFEI) 4 Universidade Federal de Itajubá (UNIFEI) 5 Universidade Federal de Itajubá (UNIFEI) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Instituto Nacional de Pesquisas Espaciais (INPE) 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 3 4 5 6 anderson.okazaki@inpe.br 7 celso.fornari@inpe.br 8 rappl@las.inpe.br 9 eduardo.abramof@inpe.br | |||
| Conference Name | Brazilian MRS Meeting, 15 | |||
| Conference Location | Campinas, SP | |||
| Date | 25-29 Sept. | |||
| Tertiary Type | Poster | |||
| History (UTC) | 2016-10-03 19:11:03 :: simone -> administrator :: 2017-01-09 13:59:32 :: administrator -> simone :: 2016 2017-01-16 15:32:35 :: simone -> administrator :: 2016 2021-03-04 02:31:11 :: administrator -> simone :: 2016 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | PbTe is a narrow gap semiconductor which exhibits interesting properties that differentiate it from othersemiconductors [1].PbTe based materials have being widely used in the fabrication of infrared devices [2] and its electrical properties are well investigated in literature. Concerning to photoconductivity effect, very few information have being reported in structures base in this compound. In this work, we present photoconductivity measurements performed in n-type PbTe quantum wells (QW) under infrared (IR) illumination and the results presented anomalous behavior at different temperature regions. Remarkably, the increasing of photoresponse reached 80 times the value measured under dark conditions at 150K, for example.For temperatures below 250K, the effect of persistent photoconductivity was also observed. In addition, a metal-insulator transition is observed in the system as the temperature crosses the value of 200K, approximately, indicating that there is transference of electrons from the barriers into the QW.The PbTe/Pb1-xEuxTe QWs samples investigated in this work weregrown by molecular beam epitaxy on (111) cleaved BaF2substrates. The sample structure consisted of a 2 to 3 µmthick Pb1-xEuxTe buffer layer grown on top of the (111)BaF2 substrate followed by a PbTe well embedded betweentwo Pb1-xEuxTe barriers doped with bismuth, which guarantee an n-type character for these samples.The width of the QWs are 14nm and 10nm. From the decay curves of the photoconductivity measurements, it is possible to detect the presence of defect levels inside the QWs. In order to obtain a detailed description of the transport properties of the systems, Hall measurements were performed under light and dark conditions. After a systematic analysis, we expect to obtain a general description of the photoconductivity effect observed in these QWs. The information obtained from this investigation can be useful for the development or improvement of devices based on PbTe compound. | |||
| Area | FISMAT | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Experimental investigation of... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CMS > Experimental investigation of... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34P/3MHFETP | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34P/3MHFETP | |||
| Language | en | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | allow from all | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | Trabalho não Vinculado à Tese/Dissertação | |||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ESR3H2 8JMKD3MGPCW/3F358GL | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.57.50 4 sid.inpe.br/bibdigital/2013/10.14.21.39 1 sid.inpe.br/mtc-m21/2012/07.13.14.44.57 1 | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||